MLB Celebrates Roberto Clemente Day
MLB expands list of who can wear No. 21 to honor Roberto Clemente on Sept. 15 - ESPN
Pirates to wear No. 21 on Sept. 9 to honor Roberto Clemente - NBC Sports
Honoring 21: Cubs' Nelson Velázquez proud to take field in honor of relative, Roberto Clemente - Marquee Sports Network
Members of Red Sox wear No. 21 with pride on Roberto Clemente Day - The Boston Globe
Roberto Clemente Day celebrated around MLB in 2023
Roberto Clemente Day Wednesday
Roberto Clemente honors pirates star
MLB celebrates Roberto Clemente Day, ceremony at Citi Field